Bumper



BUMPER Filed Aug. 20, 1920 if f) Wig (1.0 Z

INVENTOR BY mg Patented Sept. 25, 1923..

PATENT QFFHQ J'AKOB STRIGANZ, OF MILWAUKEE, WISCONSIN.

BUMPER.

Application filed August 20, 1920. Serial No. 404,944.

To all whom it may concern:

Be it known that I, JAKoB STRIGANZ, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of lVisconsin, have invented new and useful Improvements in Bumpers, of which the following is a specification.

This invention relates to bumpers and has for its primar object the construction of a door bumper that is more efficient in its operation and which will positively withstand the rough usage to which devices of this character are subject.

An object of the invention is the construction of a bumper of a substantial construction capable of withstanding excessive wear and which will not rattle when in use. I

A feature of the invention is the novel manner of constructing and associating the parts so that they may be readily assembled and disassociated should it be necessary to renew any parts. i

lVit-h these and other objects in View the invention will be better understood from the following detailed description taken in connection with' the accompanying drawing wherein:

Fig. 1 is a sectional view of a door showing the arrangement of the bumper.

ig. 2 is a cross sectional view of the bumper.

Fig. 3 is a vertical sectional view.

Fig. 4 is a detailed view illustrating the.

casing plates detached.

Fig. 5 is a perspecflve View of the follower.

Again referring to the drawing illustrating one construction of my invention the numeral 1 designates a casing consisting of a back plate 2 having lugs 3' projecting therefrom and further provided with holes 4 for attaching the bumper to the door jamb 5. ,A front' plate 6 is stamped to provide a. top wall 7 and bottom wall 8 and rear wall 9 and front wall 10, thus leaving one side open for the purpose hereinafter described.

This front plate snugly fits over the lugs and is secured thereto by the screws 11.. Slidably supported by thecasing is a resilient plunger 12 constructed from rubber or other resilient material. This plunger is provided with extensions 13 sliding in a direction to engage behind certain lugs to limit the movement of the plunger. Pressing against the back of the 'ilunger is a follower 14. Arranged between the follower 14 and knobs 15, pressed from one wall of the casing, are expansion springs 16 that yieldably act to project the plunger from the casing so that same may be properly engaged by the door and yieldably retard the closing movement of the door.

From the folegoing description taken in connection with the accompanying drawing 1t Wlll be apparent that I provide a bumper .of few parts substantially associated and which will be practically indestructible and having the additional advantage that access may be readily had to all parts.

It is, of course, to be understood that the invention may be constructed in various other manners and the parts associated in different relations and, therefore, I do not desire to be limited in any manner except as set forth in the claims hereunto appended.

Having thus described my invention what. I claim is:

A bumper comprising a casing, a back plate detachable from the casing, lugs on the back plate and, extending into the casing, a

resilient plunger, projectionson the plunger for engagement with certain of said lugs to limit movement of the plunger, a follower within the casing and engaging said plunger, springs engaging said follower and the rear wall of the casing, said rear wall having knobs struck therefrom to prevent displacement of the springs, and said back plate extended beyond the casing to provide attaching portions.

In testimony whereof I aflix my signature.

JAKOB STRIGANZ. 

